Depressed Amplifier Chassis - K5881

[Richard]

OOps! just seen your pics. That's almost nothing imho, remove the TX and tap the mounting holes back level from the inside with a soft drift whilst supporting the top plate on a block of wood covered with a cloth Get an assistant to hold the amp and if you don't want to risk metalwork pack the depressed corners with an extra washer or 2 to level up the TX.

[bob orbell]

I agree with Richard after seeing the pictures, I was expecting big damage. Bob

[Dave999]

yep in this case that is the method. Tap the holes back into position

but i have to disagree with some sentiment in the thread


steel is ductile rather than springy in most cases
and aluminium depending on age is rather brittle and work hardens very quickly

be careful pressing or bending aluminium

[Pingushome]

Hi,
Yep it’s the top plate as you said and a press or a gentle tap with a heavy hammer on a flat base then paint if you require. A spray can of satin black from your friendly local motor factor should do nicely.
Good luck
Martin

[bob orbell]

Originally Posted by Dave999

yep in this case that is the method. Tap the holes back into position

but i have to disagree with some sentiment in the thread


steel is ductile rather than springy in most cases
and aluminium depending on age is rather brittle and work hardens very quickly

be careful pressing or bending aluminium

Sorry Dave, Aluminium age hardens, cast iron work hardens. 49 years as a tool maker. Bob

[Dave999]

Yes bob i agree my mistake

but basic premise is the aluminium snaps and is un predictable in a number of ways linked to age and alloy.

heat it: tap it or press it back works brilliantly or doesn't. and it snaps like biscuit.....seems to be that its a bit of a coin-flip every time

i'm very wary if i have to heat it. Perfect structure to puddle in seconds. i scribble on it with permanent marker when it smokes and changes colour thats hot enough

not exactly scientific but avoids disaster

unless this is just a function of alloys used in car trim grills and bits of bike n scooter

Dave